zoetrope is a read-only viewer that turns Claude Code and Codex session transcripts into live flow graphs showing agents, subagents, and the tools they run. It is for developers who want to follow running sessions or replay completed ones in a terminal or browser. The catalogue instruction helps agents use or work with this session-visualization tool.
Borrowing it
Nothing to install: this file belongs to furkankly/zoetrope. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/furkankly/zoetrope/main/CLAUDE.mdgit clone --depth 1 https://github.com/furkankly/zoetropeWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/furkankly/zoetrope/claude-md)<a href="https://agentmods.dev/instructions/furkankly/zoetrope/claude-md"><img src="https://agentmods.dev/badge/instructions/furkankly/zoetrope/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/furkankly/zoetrope/claude-md"><img src="https://agentmods.dev/badge/instructions/furkankly/zoetrope/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00614 | $0.00614 |
| Opus 5.5 | $0.00246 | $0.00246 |
| Sonnet 5.5 | $0.00123 | $0.00123 |
| Haiku 4.5 | $0.00061 | $0.00061 |
Grade A, and why
zoetrope CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 34 lines — stays where its author put it; the contents beside it link to each section on GitHub.
zoetrope
Terminal UI that visualizes Claude Code and Codex agent sessions as a live flow graph. The same core also runs in the browser, compiled to wasm. Read-only, zero network.
Transcript formats enter through one boundary: src/provider/ turns records into the facts in src/fact.rs, and nothing past it knows the format. See docs/ARCHITECTURE.md §0 before adding to either side.
See docs/ARCHITECTURE.md for the invariants and principles, docs/DESIGN.md for the module map and transcript format, docs/HERDR-PLUGIN.md for the Herdr bridge in herdr-plugin/, TODO.md for the roadmap, and README.md for usage.
Running
Two crates: zoetrope at the root (the published lib + the zoe binary) and zoetrope-web in web/wasm/ (the browser frontend, publish = false, wasm32-only). The browser frontend is excluded from the root workspace and resolves as its own — it cannot be compiled for the host at all, so keeping it a member would mean permanent phantom errors in the editor. The commands below therefore only touch zoetrope; the browser frontend needs its own manifest path.
cargo build # native (default features)
cargo clippy # lint — must pass with no warnings
cargo fmt # format
cargo test # test
# the browser frontend (trunk → web/public/wasm/), lint it explicitly:
bash web/scripts/build-wasm.sh
cd web/wasm && cargo clippy # its .cargo/config.toml defaults to wasm32
Commits
Conventional Commits, lowercase imperative subject. Scope is a module, not a file: fact, provider, state, graph, timeline, tailer, ui, panel, cli, wasm, web, herdr, api, docs. herdr is the Herdr plugin in herdr-plugin/, a bridge of shell scripts that opens the focused agent pane's session in zoe; it ships by git clone rather than with the crate. api is a change to what the crate exposes rather than to one module. A change inside one provider is provider (e.g. fix(provider): inherit the timestamp across progress records).
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago Changed · +93 tokens per session 0387ccdb65e1
- 1mo ago Changed · +2 lines · +77 tokens per session d8c24d75ccca
- 1mo ago First seen · 32 lines · 444 tokens per session scan A ebc872b8fcb4
zoetrope CLAUDE.md is an instructions file published in the GitHub repository furkankly/zoetrope (1,111 stars, last pushed 13d ago), licensed MIT. It adds 614 tokens to every session, about $0.0025 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
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Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.